Reproduction and Larval Rearing of Sandfish (Holothuria scabra)

Abstract

The aim of research was to study on domesticated broodstock reproduction performance (F-1) and their juvenile (F-2) performance. Broodstock were reared in two rectangular concrete tanks with dimensions of 190 x 290 x 70 cm3. Number of broodstocks (F-1) were 12 pieces with average of total length and body weight were 12.0 ± 1.21 cm and 122.6 ± 32.37 g, respectively. Six broodstocks were put into each tank. Broodstocks were fed with compressed benthos at 4 % of biomass per day in the afternoon. The result showed that domesticated sandfish broodstock successfully spawned twice. At the first, it was only one female spawned and total number of eggs produced were 1,350,000 eggs with hatching rate of 57.4 % and another broodstock spawned at the second eventwith total number of eggs were 3,280,000 eggs and withhatching rate of 78.66 %. Growth performance of 170 day old juvenile F-2 with average total length and body weight of 5.66 ± 0.90 cm and 10.08 ± 2.07 g, respectively. The survival rates were 5.19 % and 8.68 % for juvenile from spawning in January and April, respectively. Based on these data, it is suitable for this species in aquaculture.

Yanagisawa, T. (1996). Sea cucumber ranching in Japan and some suggestions for the South Pacific. p. 387–411. In: Koloa T. and Udagawa K. (eds). Present and future of aquaculture research and development in the Pacific Island countries. Proceedings of the International Workshop, 20–24 November 1995, Tonga. Japan International Cooperation Agency.